eprintid: 3809
rev_number: 11
eprint_status: archive
userid: 399
dir: disk0/00/00/38/09
datestamp: 2019-12-20 04:40:18
lastmod: 2019-12-20 04:46:38
status_changed: 2019-12-20 04:40:18
type: article
succeeds: 3806
metadata_visibility: show
creators_name: Nguyen, Thi Dung
creators_name: Hoang, Van Thanh
creators_name: Nguyen, Dinh Lam
creators_id: Dung.nguyenthi.tunhien@gmail.com
creators_id: lamnd2005@gmail.com
title: Influences of growth durations on characteristics of NaYF4:(Yb,Tm) upconversion materials
ispublished: pub
subjects: Phys
divisions: fac_physic
abstract: NaYF4:(Yb,Tm) upconversion materials  were synthesized by the simple hydrothermal method. Growth duration was varied from 4h to 12h under a growth temperature of 150oC. The structural, optical and surface morphology characteristics of the NaYF4:(Yb,Tm) UC materials were investigated. The XRD and SEM results illustrated that the NaYF4:(Yb,Tm) materials were transformed from the multiple phases (hexagonal and cubic) to the single-phase (hexagonal prism) as growth duration being longer than 8h with the average diameter and length of these prisms being about 0.5 µm and 2 µm, respectively. Under 980 nm laser excitation, the NaYF4:(Yb,Tm) emits at peaks of 450 nm (1D2→ 3F4), 475 nm (1G4→3H6), 647 nm (1G4→3F4) and 697  nm (3F3→3H6), with the highest emission belonging to NaYF4:(Yb,Tm) grown for 8h.
date: 2019
date_type: published
publisher: VNU Journal of Science: Natural Science and Technology
full_text_status: public
publication: Influences of growth durations on characteristics of NaYF4:(Yb,Tm) upconversion materials
volume: 35
number: 4
refereed: TRUE
issn: 0866-8612
related_url_url: https://doi.org/10.25073/2588-1140/vnunst.4965
related_url_type: pub
funders: VNU University of Engineering and Technology
projects: CN19.03
citation:   Nguyen, Thi Dung and Hoang, Van Thanh and Nguyen, Dinh Lam  (2019) Influences of growth durations on characteristics of NaYF4:(Yb,Tm) upconversion materials.  Influences of growth durations on characteristics of NaYF4:(Yb,Tm) upconversion materials, 35  (4).    ISSN 0866-8612     
document_url: https://eprints.uet.vnu.edu.vn/eprints/id/eprint/3809/1/4965%29%20L%C3%A2m%200902.233.144%20%20%2827-10%2C%201-12%2C%203-12%29.docx